How severe is CVE-2018-5407?

CVE-2018-5407 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-5407 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5407?

CVE-2018-5407 primarily affects Nodejs Node.js. In total, 37 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-5407?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-5407 published?

CVE-2018-5407 was published on 2018-11-15 and last updated on 2026-06-17.

CVE-2018-5407

CVE-2018-5407 is a medium-severity vulnerability in Nodejs Node.js with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 1.9
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Nodejs Node.js
Published: 2018-11-15
Last modified: 2026-06-17

Description

Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.

Frequently asked questions

What is CVE-2018-5407?: Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.
How severe is CVE-2018-5407?: CVE-2018-5407 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-5407 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5407?: CVE-2018-5407 primarily affects Nodejs Node.js. In total, 37 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-5407?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-5407 published?: CVE-2018-5407 was published on 2018-11-15 and last updated on 2026-06-17.

References

Affected products (37)

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:api_gateway:11.1.2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:application_server:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:application_server:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:application_server:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_base_platform:12.1.0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_base_platform:13.2.0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_base_platform:13.3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_enterprise_backup:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:8.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:18.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:tuxedo:12.1.1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:vm_virtualbox:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

45.84.120.3 (ipv4-addr)
45.232.73.84 (ipv4-addr)
203.192.232.180 (ipv4-addr)
187.110.238.50 (ipv4-addr)
182.93.50.90 (ipv4-addr)
177.53.215.134 (ipv4-addr)
150.95.82.21 (ipv4-addr)
117.247.23.131 (ipv4-addr)